Shuriken

Shuriken (手裏剣; lit: "hand hidden blade") is a traditional Japanese concealed weapon that was generally used for throwing, and sometimes stabbing or slashing an opponent's arteries. They are sharpened hand-held blades made from a variety of everyday items such as needles, nails, and knives, as well as coins, washers, and other flat plates of metal. Shuriken were mainly a supplemental weapon to the more commonly used katana (sword) or yari (spear) in a warrior's arsenal, though they often played a pivotal tactical role in battle. The art of wielding the shuriken is known as shuriken-jutsu, and was mainly taught as a minor, or more correctly, a secret part of the martial arts curriculum of many famous schools, such as Yagyu Ryu, Katori Shinto Ryu, Itto Ryu, Kukishin Ryu, and Togakure Ryu. In the modern western world, shuriken can often be purchased online as collector's items.
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